Infections Requiring Surgery Following Transbronchial Biopsy in Lung Cancer Patients: A Retrospective Study

概要

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To assess the risk factors for severe infections developing as a complication of transbronchial biopsy in lung cancer patients. From April 2001 to March 2007, 1091 patients underwent bronchoscopy at our institution. We reviewed the records of 5 of these patients diagnosed with lung cancer and who developed lung abscess or cavitary infection after transbronchial biopsy necessitating surgical resection. The 5 patients (4 men, 1 woman; mean age at diagnosis, 62.4 years; range, 42-78 years) were all smokers and were immunocompetent. One patient suffered from diabetes mellitus. Of the 5 patients, chest CT revealed a cavitary lesion in 2 patients, central low attenuation in 2 patients, and a small nodule in 1 patient. The longest tumor diameter ranged from 20-60mm (mean, 42mm). Sputum cultures taken prior to bronchoscopy showed no significant bacterial growth in 4 of the patients, with 1 patient showing Streptococcus pneumoniae. Three cases showed elevated serum C-reactive protein. Histologically, the diagnosis was squamous cell carcinoma in 3 patients and adenocarcinoma in 2 patients. The risk factors for the development of a lung abscess after transbronchial biopsy include large mass lesions with central necrosis or cavitary lesions.
昭和大学学士会の論文